<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    
    <style>
        .one{
            width:100px;
            height:100px;
            background: red;
            margin-bottom: 30px;
        }
        .two{
            width:100px;
            height:100px;
            background:green;
            margin-top: 50px;
        }
    </style>
</head>
<body>
    <div class="one"></div>
    <div class="two"></div>
         
</body>
</html>
